【选择题】 2005年，习总书记在（）提出“两山理论”。

【选择题】 在进行CAT5网线测试时，发现有4条芯不通，但计算机仍然能利用该网线连接上网。则不通的 4 条芯线序号可能是（ ）。

【选择题】 当布线结构需要调整时，可以通过布线配线系统来重新配置，具体调整手段是通过（ ）实现。

【选择题】 配置VLAN有多种方法，下面属于静态分配VLAN的是（34）。

【选择题】 在网络中，路由器能够识别（）。

【选择题】 综合布线系统中由交接间的配线设备，输入/输出设备等组成，设置在每层配线设备房间内的子系统称为（ ）；由设备间的配线设备和跳线以及设备间至各楼层配线间的连接电缆组成的子系统称为（请作答此空）。

【选择题】 通常并不是所有的协议都能够通过路由器，如（ ）在路由器中就不能通过。

【选择题】 见下图，4个主机接入了网络，路由器汇总的地址是（28）。

【选择题】 按照VLAN中继协议的规定，交换机运行在（33）模式时可以进行VLAN配置，但配置信息不会传播到其它交换机。

【选择题】 根据EIA/TIA-568标准的规定，在综合布线时，信息插座到网卡之间的最大距离为（）米。

【选择题】 在交换机连接的局域网中设置VLAN，可以（）。

【选择题】 100Base-TX 采用的传输介质是（ ）。

【选择题】 TCP/IP网络中常用的距离矢量路由协议是（ ）。

【选择题】 以下关于网络规划设计的叙述中，错误的是（）。

【选择题】 在配置交换机VLAN时，以下删除VLAN的命令中，无法执行命令的是（）。

【选择题】 在Windows系统中，对话框是特殊类型的窗口，其大小（）；下图所示的对话框中，（13）是当前选项卡。

【选择题】 华为交换机在系统视图下键入什么命令可以切换到用户视图（ ）。

【选择题】 在交换机配置中，（）模式中才可以配置该交换机的设备管理地址。

【选择题】 结构化综合布线系统中的建筑群子系统是指（ ）。

【选择题】 路由信息协议RIP是一种广泛使用的基于（）的动态路由协议。RIP规定一条通路上最多可包含的路由器数量是（请作答此空）。

【选择题】 路由信息协议RIP是一种广泛使用的基于（请作答此空）的动态路由协议。RIP规定一条通路上最多可包含的路由器数量是（）。

【选择题】 跨交换机的同一VLAN 内数据通信，交换机的端口模式应采用（ ）模式。

【选择题】 交换机命令interface GigabitEthernet 0/0/1 的作用是(请作答此空) ，该接口是( )

【选择题】 某网络拓扑结构如下：

【选择题】 以下命令片段实现的功能是（ ）。[Server] telnet server enable[Server] user-interface vty 0 4[Server-ui-vtyo-4] protocol inbound telnet[Server-ui-vtyo-4] authentication-mode aaa[Server-ui-vtyo-4] user privilege level 15[Server-ui-vtyo-4] quit

【选择题】 路由信息协议RIP 是一种基于( )的动态路由协议， RIP适用于路由器数量不超过(请作答此空)个的网络。

【选择题】 路由信息协议RIP 是一种基于(请作答此空)的动态路由协议， RIP适用于路由器数量不超过( )个的网络。

【选择题】 交换机命令interface GigabitEthernet 0/0/1 的作用是( ) ，该接口是(请作答此空)

【选择题】 交换机配置命令sysname Switch1的作用是( )

【选择题】 OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （73）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

【选择题】 A management domain typically contains a large amount of management information. Each individual item of（71） information is an instance of a managed object type. The definition of a related set of managed （72）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （73） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （75） within a management domain

【选择题】 不同VLAN 间数据通信，需通过( )进行转发

【选择题】 In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （ ） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （请作答此空） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

【选择题】 Currently 94% of Web users use either Internet Explorer or Firefox, but recently some new （71） have been developed that are beginning to attract attention. The browser Opera is becoming very（72）because of its speed, it is currently the world’s fastest browser, and because it is much smaller（73） existing browsers (it can almost fit on a single diskette). It can also （74）the last Web page you visited, so the next time you surf, you can start where you left off. And like the big two, you can get it for free; the catch is that you have to watch blinking ads in one corner, or pay $40 for the ad-free （75） of Opera.

【选择题】 IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the （） of origin of a message, multicasting initially sends just one （） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （） the bandwidth consumed. Network performance is significantly （） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （） the transmitting server for the file.

【选择题】 OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （74） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

【选择题】 We have already covered the topic of network addresses. The first（71） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（72） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.

【选择题】 In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （ ） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （请作答此空） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

【选择题】 In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （ ） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （请作答此空） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

【选择题】 IP multicasting is a set of technologies that enable efficient delivery of data to many locations on a network. Rather than making multiple copies of a message intended to be distributed to multiple recipients at the （请作答此选项） of origin of a message, multicasting initially sends just one （ ） and does not copy it to the individual recipients until it reaches the closest common point on the network, thereby （ ） the bandwidth consumed. Network performance is significantly （ ） because it isn’t bogged down with the processing and transmission of several large data files; each receiving computer doesn’t have to （ ） the transmitting server for the file.

【选择题】 We have already covered the topic of network addresses. The first（71） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （73）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.

【选择题】 Secure Shell (SSH) is a cryptographic network protocol for （ ） remote login and other secure network services over an（ ）network.The standard（ ）port for SSH is 22. The best known example application is for remote login to computer systems by users.

【选择题】 Secure Shell (SSH) is a cryptographic network protocol for （请作答此空） remote login and other secure network services over an（ ）network.The standard（ ）port for SSH is 22. The best known example application is for remote login to computer systems by users.

【选择题】 Secure Shell (SSH) is a cryptographic network protocol for （ ） remote login and other secure network services over an（ ）network.The standard（请作答此空）port for SSH is 22. The best known example application is for remote login to computer systems by users.

【选择题】 Secure Shell (SSH) is a cryptographic network protocol for （ ） remote login and other secure network services over an（请作答此空）network.The standard（ ）port for SSH is 22. The best known example application is for remote login to computer systems by users.

【选择题】 A management domain typically contains a large amount of management information. Each individual item of（71） information is an instance of a managed object type. The definition of a related set of managed （72）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （74） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （75） within a management domain

【选择题】 In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （请作答此空） chance of collision because two or more stations may find the line （ ） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

【选择题】 We have already covered the topic of network addresses. The first（71） in a block (in classes A,B,and C) defines the network address. In classes A,B,and C,if the hostid is all ls, the address is called a direct broadcast address. It is used by a.（72） to send a packet to all hosts in a specific network. All hosts will accept a packet having this type of destination address. Note that this address can be used only as a （73）address in an lP packet. Note also that this special address also reduces the number of available hostid for each netid in classes A,B,and C.

【选择题】 OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （72）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

【选择题】 Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing, to make an independent （）decision at each hop within the network. The forwarding （）is based solely on the destination （）IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （本题）toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

【选择题】 A management domain typically contains a large amount of management information. Each individual item of（） information is an instance of a managed object type. The definition of a related set of managed （72）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （73） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （74） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （75） within a management domain

【选择题】 A management domain typically contains a large amount of management information. Each individual item of（71） information is an instance of a managed object type. The definition of a related set of managed （72）types is contained in a Management Information Base (MIB)module. Many such MIB modules are defined. For each managed object type it describes, a MIB （73） defines not only the semantics and syntax of that managed object type, but also the method of identifying an individual instance so that multiple （74） of the same managed object type can be distinguished. Typically, there are many instances of each managed object （） within a management domain

【选择题】 Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing, to make an independent （本题）decision at each hop within the network. The forwarding （）is based solely on the destination （）IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （）toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

【选择题】 Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing, to make an independent （）decision at each hop within the network. The forwarding （）is based solely on the destination （本题）IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （）toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

【选择题】 In multipoint networks , there are tree persistence methods when a station finds a channel busy.in the 1-persistent method,after the station finds the line idle,it sends its frame immediately.this method has the （ ） chance of collision because two or more stations may find the line （请作答此空） and send their frames immediately. In the nonpersistent method , a station that has a frame to send （ ） the line . If the line is idle , it sends immediately If the line is not idle , it waits a （ ） amount of time and then senses the line again.The nonpersistent approach （ ） the chance of collision because it is unlikely that two or more stations will wait the same amount of time and retry to send simultaneously The p-persistent approach combines the advantages of the other two strategies . It reduces the chance of collision and improves efficiency.

【选择题】 OSPF is a link-state routing protocol。It is designed to be run internal to a single （）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （75）。

【选择题】 38、【单项选择题】

【选择题】 Traditional network layer packet forwarding relies on the information provided by network layer （本题） protocols, or static routing, to make an independent （）decision at each hop within the network. The forwarding （）is based solely on the destination （）IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （）toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.

【选择题】 OSPF is a link-state routing protocol。It is designed to be run internal to a single （71）system。Each OSPF router maintains an identical （）describing the autonomous system’s topology。From this database，a routing table is calculated by constructing a shortest-path （）。OSPF recalculates routes quickly in the face of topological changes，utilizing a minimum of routing （） traffic。OSPF provides support for equal-cost multipath。An area routing capability is provided，enabling an additional level of routing protection and a reduction in routing protocol （）。

【选择题】 Traditional network layer packet forwarding relies on the information provided by network layer （） protocols, or static routing, to make an independent （）decision at each hop within the network. The forwarding （本题）is based solely on the destination （）IP address. All packets for the same destination follow the same path across the network if no other equal-cost paths exist. Whenever a router has two equal-cost （）toward a destination, the packets toward the destination might take one or both of them, resulting in some degree of load sharing.